bullhead

Definition of Bullhead in English :

1. bullhead

freshwater sculpin with a large flattened bony-plated head with hornlike spines

2. bullhead, bullhead catfish

any of several common freshwater catfishes of the United States

WordNet Lexical Database for English. Princeton University. 2010.

Bullhead

noun

1.

any of various small northern mainly marine scorpaenoid fishes of the family Cottidae that have a large head covered with bony plates and spines

2.

any freshwater North American catfish of the genus Ameiurus (or Ictalurus), having a large head bearing several long barbels

3.

a scorpion fish, Scorpaena guttata, of North American Pacific coastal waters

4. informal

a stupidly stubborn or unintelligent person

noun

1. US

any of a family (Ictaluridae) of North American freshwater catfishes

2.

sculpin (sense 1)

n.

1. Any of several stocky North American freshwater catfishes of the genus Ameiurus, having a tail that is not forked.

2. Any of several sculpins, especially the miller's thumb.